Floribunda rose plant named &#39;Keihaburu&#39;

ABSTRACT

Hybrid tea rose plant having a clear and stable lavender color, strong fragrance and vigorous, upright, well-branched growth.

GENUS AND SPECIES

Rosa hybrida

VARIETY DENOMINATION

‘KEIhaburu’

ORIGIN OF THE INVENTION

The present invention relates to a new and distinct variety of a hybridtea rose plant named ‘KEIhaburu’ which was originated by me by crossingthe variety ‘Madame Violet’ (U.S. Plant Pat. No. 6,315), with thevariety Silver Star (‘KORbido’) (Not patented).

BACKGROUND OF THE INVENTION

The primary objective of this breeding was to produce a new rose varietyhaving a clear lavender color, strong fragrance and vigorous plant.

BRIEF SUMMARY OF THE INVENTION

The objective was substantially achieved, along with other desirableimprovements, as evidenced by the following unique combination ofcharacteristics that are outstanding in the new variety and thatdistinguish it from its parents, as well as from all other varieties ofwhich I am aware:

-   -   1. Clear and stable lavender color.    -   2. Strong fragrance.    -   3. Vigorous, upright, well-branched growth.

Asexual reproduction of this new variety by cuttings, as performed atSomis, Calif., and at 283 Motoyahagi, Katori-shi, Chiba-ken 287-0025Japan shows that the foregoing and all other characteristics anddistinctions come true to form and are established and transmittedthrough succeeding propagations.

Comparison with Parents

In comparison to seed parent, ‘Madame Violet’, the peduncle is shorterand straighter. Compared to the pollen parent, ‘KORbido’, the petals arestronger (thicker) and the stems longer.

BRIEF DESCRIPTION OF THE ILLUSTRATION

The accompanying illustration shows typical specimens of the vegetativegrowth and flowers of this new variety in different stages ofdevelopment, depicted in color as nearly true as it is reasonablypossible to make the same in a color illustration of this character.

DETAILED BOTANICAL DESCRIPTION

The following is a detailed description of my new rose cultivar withcolor descriptions using terminology in accordance with The RoyalHorticultural Society (London) Colour Chart© 2001, except where ordinarydictionary significance of color is indicated.

-   Parentage:    -   -   Seed parent.—‘Madame Violet’ (U.S. Plant Pat. No. 6,315).        -   Pollen parent.—Silver Star ‘KORbido’ (not patented).-   Flower: Observations were made from January 2006 to July 2006 from    plants commencing at one year of age grown in a greenhouse    environment at Somis, Calif.-   Blooming habit: Continuous.-   Bud:    -   -   Size.—About 30 mm long and 20 mm in diameter when the petals            start to unfurl.        -   Form.—The bud form is long, pointed ovoid.        -   Color.—When sepals first divide, bud color is Violet-Blue            Group 92B. When half blown, the upper sides of the petals            are Violet-Blue Group 92B and the lower sides of the petals            are Violet-Blue Group 92B.        -   Sepals.—Color: Upper surface: Green Group N138C. Lower            surface: Yellow-Green Group 146B. Length: 20-24 mm. Width:            6-7 mm. Shape: Lanceolate. Surface texture: Hoary. There are            three lightly appendaged sepals. There are two unappendaged            sepals with hairy edges.        -   Receptacle.—Color: Yellow-Green Group 146C. Shape: Funnel.            Size: Medium, about 8 mm long×8 mm wide. Surface: Smooth.        -   Peduncle.—Length: Medium, averaging about 40-50 mm. Surface:            Smooth with an occasional gland. Color: Yellow-Green Group            146C. Strength: Stiff, erect.-   Bloom:    -   -   Size.—Medium. Average open diameter is about 80-90 mm.        -   Borne.—Singly and several together in clusters of 5-7 blooms            having rounded shape.        -   Stems.—Strength: Strong. Average length is about 40-45 cm            with a diameter of 6-7 mm.        -   Form.—When first open: High centered. Permanence: Flattens.            Outer petals curl back slightly.        -   Petalage.—Number of petals under normal conditions: 20-25.        -   Color.—The upper sides of the petals are Violet-Blue Group            92B. The reverse sides of the petals are Violet-Blue Group            92B. The base of each petal has a 5 mm×5 mm Yellow-Green            Group 154D color spot. The major color on the upper sides of            the petals is Violet-Blue Group 92B.        -   Variegations.—On guard petals are occasional Green Group            138D streaks.        -   Discoloration.—The general tonality at the end of the first            day: No change. At the end of the third day: No change.            Further aging: Fades to Violet-Blue Group 92D in day 5 or 6.        -   Fragrance.—Strong, sweet damask.-   Petals:    -   -   Texture.—Thick.        -   Shape.—Smooth.        -   Surface.—Obcordate to orbicular.        -   Margin.—Smooth or entire with some petals notched at the            apex. Apex Shape: Rounded or sometimes obcordate. Base            Shape: Rounded.        -   Form.—Tips slightly recurved.        -   Arrangement.—Imbricated.        -   Petaloids.—Number: 0 to 1 or 2. Color: Violet-Blue Group            92B. Length: 7-9 mm. Width: 3-5 mm.        -   Persistence.—Petals drop off cleanly before drying.        -   Lastingness.—On the plant: Fair (about 6-7 days). As a cut            flower: Fair (about 7-8 days).-   Reproductive parts:    -   -   Stamens.—Number: 70-85. Length: 8-11 mm. Anthers: Length:            3 mm. Color: Yellow-Orange Group 21D. Arrangement: Regular            around styles. Filaments: Color: Yellow Group 8D. Length:            5-8 mm Pollen: Color: Yellow-Orange Group 22A.        -   Pistils.—Number: 45-55. Length: 4-5 mm. Styles: Color: White            Group 155C. Length: 3-4 mm. Stigmas: Color: Orange-White            Group 159A. Length: 1 mm.        -   Hips.—Color: Yellow-Orange Group 16A. Shape: Round. Size:            25-28 mm diameter. Seed: 10-16/hip Size: 3-4 mm×3-4 mm.            Color: Yellow-Orange Group 22D.-   Plant:    -   -   Form.—Bush.        -   Growth.—Vigorous, upright, branching.        -   Age at maturity.—One year.        -   Mature plant.—Height: 100-120 cm Width: 60-80 cm.        -   Rootstock.—Own root.-   Foliage: Number of leaflets on normal mid-stem leaves: 5.    -   -   Size.—Medium. About 13 cm long×10 cm wide.        -   Quantity.—Abundant.        -   Color.—New foliage: Upper side: Greyed-Red Group 178A. Lower            side: Greyed-Red Group 178A. Old foliage: Upper side: Green            Group 139A. Lower side: Yellow-Green Group 147B.-   Leaflets:    -   -   Size.—About 50 mm long×30 mm wide.        -   Shape.—Ovate.        -   Base shape.—Rounded.        -   Apex shape.—Acuminate.        -   Texture.—Leathery, smooth.        -   Edge.—Serrated.        -   Serrations.—Single.        -   Petiole.—Color: Green Group 137D.        -   Petiole rachis.—Color: Green Group 137D. Underside: Smooth            with occasional prickle.        -   Auricles.—None.        -   Stipules.—Length: 9-11 mm; smooth.        -   Disease resistance.—Resistant to rust and susceptible to            powdery mildew, downy mildew and blackspot under normal            growing conditions.        -   Pest resistance.—None observed.        -   Vein color.—Green Group 137D.        -   Venation pattern.—Reticulate.-   Wood:    -   -   New wood.—Color: Yellow-Green Group 146D. Bark: Smooth.        -   Old Wood.—Color: Green Group 137A. Bark: Smooth.-   Prickles:    -   -   Quantity.—On main canes from base: 10-13 per 15 cm of stem.            On laterals from main canes: 10-13 per 15 cm of stem.        -   Form.—Hooked downward.        -   Length.—5-6 mm.        -   Color when young.—Greyed-Red Group 178A.        -   Color when mature.—Greyed-Orange Group 165A.-   Small prickles:    -   -   Quantity.—On main stalks: None. On laterals: None.-   Winter hardiness: Hardy to Zone 6.

1. A new and distinct variety of rose plant of the hybrid tea class,substantially as herein shown and described, characterized particularlyby its clear and stable lavender color, strong fragrance and vigorous,upright, well-branched growth.